It’s okay for your battery to run out of power. In fact, every LP Battery runs out of power after 1000 of its charging cycles. But it’s not okay to never get it serviced and replaced. The A1466 Battery is built to power up your 13-inch MacBook Air, and bring its magic back to your life. It’s built with a 99% Cobalt proportion and only the premium of Electric cores, for performance that keeps going.